. Railway mechanical engineer . Fig. 9—One Type of Tube Testing Machine ing machine, taking care to see that the weld is smoothlymade. Sucessive Safe Ending It is recommended that body tubes contain not more thanthree welds at one time, with a total length of welded endsnot to exceed 21 inches. If the total lengths of welds exceed21 inches, all welds should be cut off and one piece of thetube welded on to bring the length up to the this a new 5-inch safe end should be added at the fireboxend at the first safe ending. Thereafter Table 2 should govern. Superheater flues should not
. Railway mechanical engineer . Fig. 9—One Type of Tube Testing Machine ing machine, taking care to see that the weld is smoothlymade. Sucessive Safe Ending It is recommended that body tubes contain not more thanthree welds at one time, with a total length of welded endsnot to exceed 21 inches. If the total lengths of welds exceed21 inches, all welds should be cut off and one piece of thetube welded on to bring the length up to the this a new 5-inch safe end should be added at the fireboxend at the first safe ending. Thereafter Table 2 should govern. Superheater flues should not contain more than two ct Method of Preparing Safe Ends for Use The use of a .safe end shorter than five inches is not recom-mended, Fig. 11. First Application.—New flue. Second Application.—Cut swaged end to .3J/i inches andapply 5 inches safe end, cutting to length after welding. Third Application.—Cut swaged end to .3^ inches andapply safe end just long enougli to give required length. Fourth AppUcalicm.—f)ly safe end of full (liumeterat smokebox end, just long enough to give ref|uired to standard requirements. Fifth Application.—Same as second.• Sixth —Same as third. Seventh Applicatioii.—Same as fourth, except that old safeend at smokebox end of the flue must be cut off and a longersafe end used. Suggestions in Connection With the Ordering, Unload-ing and Storing of the Tubes Ordmng.—Requisitions or orders for boiler tubes, arch O] New A y Flue Fig. 11—Successive Applications of Safe E
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
